Tack-pulling tool.



J. B. HADAWAY. TACK PULLINGTOOL. A'rPLIoATIon rILnDJULY 1. 1909.

Patented Apr. 4, 1911.

4, Aal.. www1/Vas .d 8 l l Swampseott, in the county UNITED STATES PATENT OFFICE.

JOHN I-IADAWAY, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR T0 UNITED .SHOE MACHINERY COMPANY, OF PATERSON, NEN JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Application led July 1, 1909.

TACK-PULLING- TOOL.

To all 'whom 'it may concern:

Be it known that I, JOHN B. HADAWAY, a citizen of' the United States, residing at of Essex and State of Massachusetts, have invented cergtain new and useful Improvements in Tack- Pulling Tools; and I do hereby declare the following to be a full, clear, and. exact description of the invention7 such as will 'enable others skilled in the art to which it appertains to make and use the same.

The invention relates to machines for pulling tacks from lasted shoes, and more particularly to that class of tack pulling machines in which the tacks are acted upon and extracted by a rotary tool havino one or more transverse tack engaging blac es or edges.

The object of the invention is to provide a tack pulling tool of t-his character with a tack puller, the tack engaging edge of which may be readily repaired and sharpened, and may also be maintained in proper relation to the guard flange or flanges with which these tools are usually provided, as the front face of the puller is gradually removed or ground away by the repeated sharpening of the puller.

To these ends the invention contemplates the provision in a rotary tack pulling tool provided with one or more guard flanges 'for engaging the sole of a shoe, of a tack puller provided with an eccentric periphery back oi' its transverse tack pulling edge, and means for adjusting the puller to maintain its edge in proper relation to the guard. h

the axis ot the spindle n1 order to give the flange as the front face of the puller is ground away in repeatedly sharpening the edge of the puller.

In accordance with the broaderlfeatures of the invention, any suitable means may be providedv for enabling the puller t 0 be adjusted and secured in adjusted position so as to bring the tack pulling edge of the puller in proper relation to the work engaglng guard flange.

In the simplest and most eflicient form` 2 1s a sectional elevation on line 2 2. Fig.

l; Fig". 3 is a sectional elevation on lined-3, Fig. `2; Fig. 4c is a sectional view on line 4 4, Fig. 5, showing a modified .form of means for securing the puller in adjusted -position upon the eccentric support; and Fig. 5 is a sectional elevation on line 5 5, Fig. l.

In the construction shown in the drawings the tack pulling tool is carried upon the end of a rotary spindle l, and comprises generally ay tack puller 2 and two guard flanges or disks 3 and l secured on oppositesides of the puller. The outer end ot' the spindle is provided with two concentric bearings or supports' and 6 upon which the disks 3 and if are mounted, and is also provided with an intermediate .support 7 upon which the puller 2 is mounted. The puller and guard disks or flanges are held upon the end of the spindle by means of a clamping screw S and washer 9, the parts being firmly clamped between the washer 9 and a shoulder l() formed on the spindle at the inner end of the bearing The puller 2 is pro# vided with a transversrfe tack pulling edge l1', and the periphery ci' the tuck puller back of the edge ll is so sha pcd that it is eccentric to clearance requisite for the etlicient action oi" the tack pulling edge upon the tacks.

The tack pulling edge 11 should project slightly beyond the periphery of the guard flanges in order that it may dig :under the embedded head of an insole tack and pull it from the shoe without injury to the sole when the sole is held firmly against the periphery of the guard flanges. `When the tack pulling edge becomes dulled or nicked by reason of its engagement with the tacks it may be readily removed from the spindle and the edge sharpened by grinding away the front 'lace .l2 of the puller. Since the periphery 9 ot the puller back ot' the tack pulling edgeis eccentric'. the grinding away of the trent i'ace gradually brings the edge 11 nearer the axis ot the tool, andtends to destroy the proper relation of the edge to the y periphery of the guard flanges. The 4tack pulling edge-of the-puller is maintained in ground away.

-.-. Securing proper relation to the periphery of the -guard flanges bya compensating adjustment pulling edge produced byl grinding away the centric support.

face of the tackpuller.

In the construction shown in Figs.. 1 and 2, the eccentric support 7 is cylindrical and is engaged by a cylindricalopening formed in the hub 111 of the puller 2. In this 'construction the puller-is secured in the proper :l posit-ion upon the eccentric support by means' of a screw 15, the inner end of vwhich is arranged to lengage any one of a series of recesses'l formed in the periphery of the eccentric support 7. As the front face 12A of the tack puller is ground away, the position, of the puller on the eccentric support may be successively shifted so that the transverse `tack pulling edge of the puller will 4 projectv the proper distance beyond the peripheries of the guard flanges.l

In Figs. 4: and 5 a modified form of means for securing the puller in different adjusted positions upon the eccentric support is show-didn the construction shown in these eccentric support 7a is polygonal, an'djthje hub of the puller is provided with a correspondingly shaped opening. `With this construction the position of the puller qupon the eccentric support may be readily shiftedto-maintain the tackpulling edge ofthe puller in proper relat onto they periphery of the guard flanges, and the puller is. firmly held aga-inst rotation when in any adjusted position by the engagement ofthe hub of the puller.' with the polygonal ec- One or both of. the flanges may be provided with openings 17 arranged to register with' the front face of the tack pulling tool so that any leather or other matter collecting in front of the tack pulling edge ofy the puller during the. operation maybe readily pushed out from between the flanges through the openings.

Having explained the nature and object ofthe invention, and specifically described oneforr'n of tack pulling toolin whichfit may be embodied, what I claim is In the construction sh'own is also yprovidedy for firmly for positively' locking 1. A rotary tack pulling tool, having, in

combination, a puller provided with a transverse tack pulling edge and an eccentric periphery back oisaidedge, a guard flange at one side of the puller, and means for adjusting the puller to maintain its edge in proper rela-tion to the periphery of the flange as the front face of the pulleris ground away,Y substantially as described.

2. A rotary tack' pulling tool, having, in

combination, a spindle, an eccentric sup.

porton the spindle, a' puller having a transverse tack pulling edge adjustably secured on the 'eccentric support, and a guard flange at one side of the puller, substantially as scribed.

3. A- rotary tack pulling tool, having, in combination, a spindle, two concentric supports and an intermediate eccentric support on the end of the spindle, guard flanges mounted. on the concentric supports', and a tack puller adju'stably mounted vonl the eccentricsupportand provided with a transverse tack pulling edge and an eccentric pe riphery back of the tack pulling edge, substantially as described.

4. A rotary tack pulling tool, having, in combination, a spindle, a concentric guard flange on the end of the spindle, an eccentric support-on the endof the spindle, a puller provided with a hub 'surrounding the eccentric support and also `provided with a transverse tack pulling edge and an eccentric periphery back of said edge, and means for securing the tack puller in different positions upon the eccentric support, substantially as described. l

5. A rotary tack pulling tool, having, in combination, a spindle, an eccentric support on the spindle, a puller having a transverse -tack'pulling edge adjustably secured on the yeccentric support, means for positively locking the puller in. position on the support, `and a guard flange atione side of the puller, lsubstantially as described.

6. A rotary tack pulling tool, having, in

combination, a spindle, a concentric guard flange on the end of the spindle, an eccentric support on the end of the spindle, and a puller provided with a hub vsurrounding the eccentric lsupport and withmeans the puller in different positions rupon the support, substantially as described. l

In testimony whereofl aiiiX my signature, in presence of two witnesses. 7

' JOHN B. HADAWAY.

Witnesses:

WARREN Gr. OGDEN, N. D. McPHArL. 

